Make comments relating to omega (frac.flow-weighted density) precise.

opm/core/pressure/IncompTpfa.cpp

@@ -133,8 +133,8 @@ namespace Opm
     /// \param[in]  totmob     Must contain N total mobility values (one per cell).
     ///                        totmob = \sum_{p} kr_p/mu_p.
     /// \param[in]  omega      Must be empty if constructor gravity argument was null.
-    ///                        Otherwise must contain N mobility-weighted density values (one per cell).
-    ///                        omega = \frac{\sum_{p} mob_p rho_p}{\sum_p rho_p}.
+    ///                        Otherwise must contain N fractional-flow-weighted density
+    ///                        values (one per cell).
     /// \param[in]  src        Must contain N source rates (one per cell).
     ///                        Positive values represent total inflow rates,
     ///                        negative values represent total outflow rates.

opm/core/pressure/IncompTpfa.hpp

@@ -79,8 +79,9 @@ namespace Opm
         /// \param[in]  totmob     Must contain N total mobility values (one per cell).
         ///                        totmob = \sum_{p} kr_p/mu_p.
         /// \param[in]  omega      Must be empty if constructor gravity argument was null.
-        ///                        Otherwise must contain N mobility-weighted density values (one per cell).
-        ///                        omega = \frac{\sum_{p} mob_p rho_p}{\sum_p rho_p}.
+        ///                        Otherwise must contain N fractional-flow-weighted density
+        ///                        values (one per cell).
+        ///                        omega = \frac{\sum_{p} mob_p rho_p}{\sum_p mob_p}.
         /// \param[in]  src        Must contain N source rates (one per cell).
         ///                        Positive values represent total inflow rates,
         ///                        negative values represent total outflow rates.

opm/core/utility/miscUtilities.cpp

@@ -211,8 +211,7 @@ namespace Opm
     /// @param[in]  cells     cells with which the saturation values are associated
     /// @param[in]  s         saturation values (for all phases)
     /// @param[out] totmob    total mobility
-    /// @param[out] omega     mobility-weighted (or fractional-flow weighted)
-    ///                       fluid densities.
+    /// @param[out] omega     fractional-flow weighted fluid densities.
     void computeTotalMobilityOmega(const Opm::IncompPropertiesInterface& props,
 				   const std::vector<int>& cells,
 				   const std::vector<double>& s,

opm/core/utility/miscUtilities.hpp

@@ -112,8 +112,7 @@ namespace Opm
     /// @param[in]  cells     cells with which the saturation values are associated
     /// @param[in]  s         saturation values (for all phases)
     /// @param[out] totmob    total mobility
-    /// @param[out] omega     mobility-weighted (or fractional-flow weighted)
-    ///                       fluid densities.
+    /// @param[out] omega     fractional-flow weighted fluid densities.
     void computeTotalMobilityOmega(const Opm::IncompPropertiesInterface& props,
 				   const std::vector<int>& cells,
 				   const std::vector<double>& s,